The only fear I have for this game is that every planet you visit will be TOO similar. Yes the critters will be different, and the color will be different, and the resources will be different. I just hope there are populated worlds, inhospitable worlds, worlds covered by a single city, worlds covered by liquid hydrogen, worlds covered in lava, barren worlds. . . all reflective of their position in their solar system and neighboring star systems.
The game is already a must buy. And, like a lot of people, I'll be making a beeline to the center of the galaxy. It almost feels like "Ready Player One."